PoS - Proceedings of Science
Volume 334 - The 36th Annual International Symposium on Lattice Field Theory (LATTICE2018) - Poster reception
Positive-parity Baryon Spectra on Isotropic Lattice
T. Khan,* D.G. Richards, F. Winter
*corresponding author
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Published on: May 29, 2019
Abstract
We present a calculation of the low-lying spectrum for the positive-parity Delta and Nucleon using the distillation approach applied on an isotropic lattice at a pion mass of around 360 MeV. We use a non-relativistic basis of three-quark operators, together with so-called hybrid-type operators. The results are compared with lattice calculations at higher pion masses on an anisotropic lattice. The effect of varying the distillation space on the calculation is explored with the aim of obtaining stable results with a minimal number of distillation eigenvectors.
DOI: https://doi.org/10.22323/1.334.0312
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